Abstract
A method of obtaining an optimal calibration curve for Sprit Film Probe was presented. This probe is an effective velocity sensor in the turbulent flow with reverse-flow. However, an optical calibration method for this probe has not been ascertained yet, because of complex heat interaction and existence of split line on a hot film. As the resalt of this study, it was found that exponential functions based on King's law which were obtained each probe angles of attack were applied to calibration functions that express the relation between heat radiant rating and velocity.
